CN102736838B - The recognition methods of multi-point rotating movement and device - Google Patents

The recognition methods of multi-point rotating movement and device Download PDF

Info

Publication number
CN102736838B
CN102736838B CN201110154394.2A CN201110154394A CN102736838B CN 102736838 B CN102736838 B CN 102736838B CN 201110154394 A CN201110154394 A CN 201110154394A CN 102736838 B CN102736838 B CN 102736838B
Authority
CN
China
Prior art keywords
waveform
coordinate
equivalence
inductive
control device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201110154394.2A
Other languages
Chinese (zh)
Other versions
CN102736838A (en
Inventor
易连方
蔡铁军
江海亮
何邦君
杨云
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BYD Semiconductor Co Ltd
Original Assignee
BYD Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BYD Co Ltd filed Critical BYD Co Ltd
Priority to CN201110154394.2A priority Critical patent/CN102736838B/en
Publication of CN102736838A publication Critical patent/CN102736838A/en
Application granted granted Critical
Publication of CN102736838B publication Critical patent/CN102736838B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
    • G06F3/0487—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser
    • G06F3/0488—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures
    • G06F3/04883—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures for inputting data by handwriting, e.g. gesture or text
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0416—Control or interface arrangements specially adapted for digitisers
    • G06F3/04166—Details of scanning methods, e.g. sampling time, grouping of sub areas or time sharing with display driving
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04104—Multi-touch detection in digitiser, i.e. details about the simultaneous detection of a plurality of touching locations, e.g. multiple fingers or pen and finger
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/048—Indexing scheme relating to G06F3/048
    • G06F2203/04808—Several contacts: gestures triggering a specific function, e.g. scrolling, zooming, right-click, when the user establishes several contacts with the surface simultaneously; e.g. using several fingers or a combination of fingers and pen

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Position Input By Displaying (AREA)
  • User Interface Of Digital Computer (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)

Abstract

The invention provides the recognition methods of a kind of multi-point rotating movement, comprise the following steps: A: by the inductive waveform that object touching is caused at least one angle detecting contactor control device；B: determine the number of objects of this touching contactor control device according to the inductive waveform of detection；C: judge whether this number of objects detected is multiple；D: if it is determined that this number of objects of detection is multiple, then judge whether the plurality of object performs rotary motion；And E: if the plurality of object performs rotary motion, then contactor control device generates control signal, and according to the executive control operation on this contactor control device of described control signal。Present invention also offers the identification device of a kind of multi-point rotating movement for contactor control device。The recognition methods of multi-point rotating movement according to embodiments of the present invention and device can know the number of object and the spinning movement of object touching exactly。

Description

The recognition methods of multi-point rotating movement and device
Technical field
The present invention relates to object identification, particularly relate to recognition methods and the device of a kind of multi-point rotating movement for contactor control device, this recognition methods and identification device and can be respectively used to identify number and the spinning movement of the multiple objects such as touched。
Background technology
Along with the fast development of technology, electronic product there occurs snafu change, and along with the appearance of recent touch control e series products, touch-control product is more and more welcomed by the people。Touch-control product not only can be saved space, be convenient for carrying, and user's finger or pointer etc. just can be made directly operation, use comfortable, very convenient。Such as, the common personal digital assistant (PDAs) of existing market, touch-control class mobile phone, portable notebook computer etc., all strengthened the input to touch technology, be more widely applied so touch-control device must have in every field in the future。
At present, capacitance type touch-control panel due to wear-resistant, life-span length and also in light loss and system behavio(u)r more advantage, so capacitance type touch-control panel receives pursuing of market recently, various capacitance touching control screen products emerge one after another。Generally, the operation principle of capacitance type touch-control panel is to carry out the capacitance variations of induction panel by touch chip and judge position and the action of finger。
Such as, when touching detection, capacitance detecting detects laterally and longitudinally electrod-array successively respectively, according to the change of electric capacity before and after touching, determines lateral coordinates and longitudinal coordinate respectively, is then combined into the touch coordinate of plane。The scan mode of self-capacitance, is equivalent to the touch points on contact panel to project to respectively X-axis and Y direction, then calculates coordinate in X-axis and Y direction respectively, be finally combined into the coordinate of touch points。This method can only detect single-point, it is impossible to realizes the detection of multiple spot。Additionally, traditional method can't detect touching object movement content on contact panel, for instance touching object performs to perform spinning movement or zoom action etc. on contact panel。
Summary of the invention
It is contemplated that at least solve one of technical problem of existence in prior art。
For this, the present invention needs to provide the recognition methods of a kind of multi-point rotating movement, and the method can identify the number of object and the touch action (such as rotating touch action) of object more exactly。
Additionally, the present invention it is also required to provide the identification device of a kind of multi-point rotating movement for contactor control device, this device can know the number of object and the touch action of object exactly, for instance the spinning movement when number of the object of touching and the touching of many objects。
For solving above-mentioned technical problem, the embodiment of first aspect present invention is in that to propose the recognition methods of a kind of multi-point rotating movement, comprises the following steps: A: by the inductive waveform that object touching is caused at least one angle detecting contactor control device；B: determine the number of objects touching described contactor control device according to the described inductive waveform of detection；C: judge whether the described number of objects detected is multiple；D: if it is determined that the described number of objects of detection is multiple, then judge whether the plurality of object performs rotary motion；And E: if the plurality of object performs rotary motion, then described contactor control device generates control signal, and according to the executive control operation on described contactor control device of described control signal。
By the recognition methods of the multi-point rotating movement of the present invention, according to obtaining produced inductive waveform along at least one direction in the touch surface of contactor control device, it is possible to identify the number of object exactly。Further, when detection has multiple object to touch on contactor control device, it is possible to identify the rotary motion on described contactor control device of multiple object further exactly, and perform the control operation corresponding with rotary motion on contactor control device。
The embodiment of second aspect present invention is in that to propose the identification device of a kind of multi-point rotating movement for contactor control device, including: detection module, described detection module is touched caused inductive waveform by object on contactor control device described at least one angle detecting；Touching number of objects determines that module, described touching number of objects determine that module determines, according to the described inductive waveform of detection, the number of objects touching described contactor control device；Object rotary motion determine module, described object rotary motion determine module described touching number of objects identification module identify described number of objects be multiple time, for judging whether the plurality of object performs rotary motion；And signal generator module, in described object rotary motion, described signal generator module determines that module judges to generate control signal when the plurality of object performs rotary motion, and according to the executive control operation on described contactor control device of described control signal。
By the identification device of the multi-point rotating movement for contactor control device of the present invention, according to obtaining produced inductive waveform along at least one direction in the touch surface of contactor control device, it is possible to identify the number of object exactly。Further, when detection has multiple object to touch on contactor control device, it is possible to identify the rotary motion on described contactor control device of multiple object further exactly, and perform the control operation corresponding with this rotary motion on contactor control device。
The additional aspect of the present invention and advantage will part provide in the following description, and part will become apparent from the description below, or is recognized by the practice of the present invention。
Accompanying drawing explanation
Above-mentioned and/or the additional aspect of the present invention and advantage are from conjunction with will be apparent from easy to understand the accompanying drawings below description to embodiment, wherein:
Fig. 1 is the flow chart of the recognition methods of the multi-point rotating movement of one embodiment of the present of invention；
Fig. 2 is the schematic diagram of the line of induction on the contactor control device of one embodiment of the present of invention；
Fig. 3 is the sub-process figure of the recognition methods of the multi-point rotating movement of one embodiment of the present of invention；
Fig. 4 is the inductive waveform schematic diagram with reference waveform of the first embodiment of the present invention；
Fig. 5 is the inductive waveform schematic diagram with reference waveform of the second embodiment of the present invention；
Fig. 6 is the inductive waveform schematic diagram with reference waveform of the third embodiment of the present invention；
Fig. 7 is the schematic diagram that two objects of one embodiment of the present of invention do clockwise rotation around induction region；
Two objects that Fig. 8 is one embodiment of the present of invention do clockwise rotation equivalent schematic around induction region；
Fig. 9 is the flow chart of detection many objects rotary motion of one embodiment of the present of invention；
Figure 10 detects the sub-process figure in many objects spinning movement flow process in Fig. 9；
Figure 11 detects the direction of rotation of judgment object in many objects spinning movement flow process and exports the flow chart of an embodiment of control signal in Fig. 9；
According to slope value, Figure 12 (a) judges that two objects turn clockwise the schematic diagram in direction in induction region in Figure 11；
Figure 12 (b) judges two objects schematic diagram of direction of rotation counterclockwise in induction region according to slope value in Figure 11；
Figure 13 detects the direction of rotation of judgment object in many objects spinning movement flow process and exports the flow chart of another embodiment of control signal in Fig. 9。
According to angle value, Figure 14 (a) judges that two objects turn clockwise the schematic diagram in direction in induction region in Figure 13；
Figure 14 (b) judges two objects schematic diagram of direction of rotation counterclockwise in induction region according to angle value in Figure 13；
Figure 15 is the structural representation identifying device of the multi-point rotating movement for contactor control device of one embodiment of the present of invention；
The number of objects of touching that Figure 16 is one embodiment of the present of invention determines the structural representation of module；
Figure 17 is the structural representation that module is determined in the object rotary motion of one embodiment of the present of invention；And
Figure 18 be the multi-point rotating movement for contactor control device of one embodiment of the present of invention identify that device carries out the schematic diagram of man-machine interaction。
Detailed description of the invention
Being described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has the element of same or like function from start to finish。The embodiment described below with reference to accompanying drawing is illustrative of, and is only used for explaining the present invention, and is not considered as limiting the invention。
In describing the invention, term " inner side ", " outside ", " longitudinal direction ", " transverse direction ", " on ", D score, " top ", the orientation of the instruction such as " end " or position relationship be based on orientation shown in the drawings or position relationship, it is for only for ease of the description present invention rather than requires that the present invention with specific azimuth configuration and operation, therefore must be not considered as limiting the invention。
Describe recognition methods and the device of the multi-point rotating movement according to the present invention below with reference to accompanying drawings in detail。
The recognition methods of multi-point rotating movement according to embodiments of the present invention is described first below, where figure 1 shows the flow chart of the recognition methods of the multi-point rotating movement of one embodiment of the present of invention。The method includes:
Step A: by the inductive waveform that object touching is caused at least one angle detecting contactor control device, in one embodiment of the invention, this inductive waveform can be caused by the touching of object, or also can be caused by sound wave, then or also can caused by image projection；
Step B: determine the number of objects of touching contactor control device according to the inductive waveform of detection；
Step C: judge whether the number of objects detected is multiple；
Step D: if it is determined that the described number of objects of detection is multiple, then judge whether the plurality of object performs rotary motion；And
Step E: if multiple object performs rotary motion, then contactor control device generates control signal, and according to control signal executive control operation on contactor control device。
Thus according to obtaining the inductive waveform produced along at least one direction, and the number identification according to inductive waveform, such that it is able to identify the number of object exactly。
It should be noted that this inductive waveform can by touching generation, can also obtain described inductive waveform by other such as acoustics sensor, optical sensing, electricity sensing etc. herein, this also falls within protection scope of the present invention。
In above-mentioned steps A, it is possible to include detecting, along the first direction in the touch surface of described contactor control device, the first inductive waveform that object touching is caused；And detect, along the second direction in the touch surface of described contactor control device, the second inductive waveform that object touching is caused。
It should be noted that; with contactor control device exemplarily property embodiment, recognition methods and the device of the present invention will be described in the following description; but those of ordinary skill is after the following detailed description having read the present invention; obviously the recognition methods of the present invention and device can also being applied/be attached in other method and apparatus, the protection domain of the method and device is defined by claims and equivalent arrangements thereof。
Fig. 2 is the schematic diagram of the line of induction on the contactor control device of one embodiment of the present of invention, wherein contactor control device is combined by the X-direction line of induction 11 and the Y-direction line of induction 12, and utilizing this X-direction Irritability line 11 and the Y-direction line of induction 12 to obtain inductive waveform, F1 and F2 is touching object。
It should be noted that the line of induction is used only to a kind of method and/or the device of sensing touching waveform, other such as utilize the sensor of sound wave, light wave etc. to be used, and it also falls within protection scope of the present invention。
It should be noted that predetermined angle can be formed between the X-direction line of induction 11 and the Y-direction line of induction 12。And preferably, this angle is right angle。
Additionally, in the following description, term " ascendant trend waveform " refers to the waveform that the inductive waveform of this section is crossing to the top of reference waveform from the lower section of inductive waveform；Term " downward trend waveform " refers to the waveform that the inductive waveform of this section is crossing to the lower section of reference waveform from the top of inductive waveform, this waveform is not confined to any concrete waveform shape herein, it can be any waveform shape that those of ordinary skill is understood, as long as it meets the definition of aforesaid " ascendant trend waveform " and " downward trend waveform "。In addition; term " reference waveform " can be any default waveform, and in the present invention, this reference waveform is straight line; but those of ordinary skill obviously can select required reference judgment standard according to the needs of practical application, and this also falls within protection scope of the present invention。
When detecting object touching, first the detection each bar line of induction of X-direction obtains the inductive waveform of X-direction, and the inductive waveform of X-direction and reference waveform (dotted line in Fig. 4-6) are compared the number of times judging to obtain X-direction rising and/or downward trend waveform, by calculating the number of times of X-direction rising and/or downward trend waveform and then obtaining the number of X-direction touching object。Then the detection each bar line of induction of Y-direction obtains the inductive waveform of Y-direction, and the inductive waveform of Y-direction and reference waveform value compare the number of times judging to obtain Y-direction rising and/or downward trend waveform, and then obtains the number of Y-direction touching object。
Alternatively, the number of number and Y-direction touching object that X-direction is then touched object compares, and the big person obtained is the number touching object on actual contactor control device。
It should be noted that; in order to strengthen the accuracy of detection of inductive waveform; can gathering along the produced inductive waveform of these directions touching along the more direction (such as 3,4 or 5 etc.) of the touch surface of contactor control device, this also falls within protection scope of the present invention。
The each step of the recognition methods of the present invention is described more fully below。Fig. 3 be the multi-point rotating movement of one embodiment of the present of invention recognition methods in the flow chart of step B, Fig. 4 is the inductive waveform schematic diagram with reference waveform of the first embodiment of the present invention。
As it has been described above, can detect and obtain the inductive waveform caused by object in step。In stepb, including:
B1: compared with reference waveform value by each influence value of described inductive waveform, to judge whether inductive waveform includes ascendant trend waveform and/or downward trend waveform；And
B2: determine the number of object according to the number of ascendant trend waveform and/or downward trend waveform in inductive waveform。
It is described in detail below in conjunction with step B in the Fig. 3 recognition methods to multi-point rotating movement。In stepb, including:
Step 300: the current influence value of inductive waveform and reference waveform value are compared, it is judged that whether the current influence value of inductive waveform is more than reference waveform influence value；If being judged as YES, perform step 301, if it is determined that otherwise perform step 303；
Step 301: determine whether that whether the previous influence value of inductive waveform is less than reference waveform influence value, it is judged that be yes, then perform step 302 and to obtain this place's inductive waveform be ascendant trend waveform, and record this ascendant trend waveform；If the judgment is No, then step 305 is performed；
Step 303: determine whether that whether the previous influence value of inductive waveform is more than reference waveform influence value, if the judgment is Yes, then perform step 304 and to obtain this place's inductive waveform be downward trend waveform, and record this downward trend waveform, it is judged that for no execution step 305；
Step 305 is: judge whether current influence value is last, if judging is last, then performs step 306: determining the object touching quantity of the direction according to the number of times of rising and/or downward trend waveform, if being judged as NO, re-executing step 300。Wherein, this embodiment has been merely given as waveform when two objects are touched, it is clear that the method can be used for touching situation during object more than two。
According to one embodiment of present invention, can also including before step B in FIG: arrange the first initial influence value, wherein, the first initial influence value is arranged according to the sensing direction of described inductive waveform。Wherein, the sensing direction of described inductive waveform is the variable-quantity directional caused by object in an embodiment of the present invention。Such as, in Fig. 4, the sensing direction of inductive waveform is upwards, and the sensing direction of inductive waveform is downward in Figure 5。In an embodiment of the present invention, if the sensing of inductive waveform is upwardly directed, then the first initial influence value should be less than reference waveform value, whereas if the sensing of inductive waveform is downwardly, then the first initial influence value should be greater than reference waveform value。And after being compared with reference waveform value by the initial influence value of inductive waveform, determine whether inductive waveform includes ascendant trend waveform or downward trend waveform according to the comparative result of the first initial influence value Yu described reference waveform value。
According to one embodiment of present invention, can also including before step B in FIG: arrange the second initial influence value, wherein, the second initial influence value is arranged according to the sensing direction of described inductive waveform。In an embodiment of the present invention, if the sensing of inductive waveform is upwardly directed, then the second initial influence value should be less than reference waveform value, whereas if the sensing of inductive waveform is downwardly, then the second initial influence value should be greater than reference waveform value。And after being compared with reference waveform value by the final influence value of inductive waveform, determine whether inductive waveform includes ascendant trend waveform or downward trend waveform according to the comparative result of the second initial influence value Yu reference waveform value。Wherein, above-mentioned in an embodiment of the present invention sensing peak value refers to the maximum sensing variable quantity caused by object。
By before the initial influence value of inductive waveform and increase the first initial influence value and the second initial influence value respectively after final influence value, on contactor control device, Article 1 line of induction influence value will compare with the default first initial influence value, the last item line of induction influence value will compare with the default second initial influence value, so it is possible to prevent to be sequentially carried out when adjacent two line of induction influence values judge and the situation that Article 1 or the last item line of induction influence value do not have corresponding object to compare judgement occurs, and the number that so can obtain the number of ascendant trend waveform and downward trend waveform is equal, such that it is able to using the number of ascendant trend waveform as touching object number, or using the number of downward trend waveform as touching object number。
If the number obtaining the number of ascendant trend waveform and downward trend waveform is unequal, then re-execute step A to re-start the identification of number。
According to one embodiment of present invention, it is possible to by judging that the distance between inductive waveform and the intersection point of reference waveform determines whether the number of touching object。
When the local of the inductive waveform that object is touched is on reference waveform, need to judge that whether the distance between inductive waveform and reference waveform ascending node and lower southbound node immediately after is more than the first predetermined threshold, so can determine whether the physical presence of this touching object, if the local of the inductive waveform of object touching is under reference waveform, then judge under inductive waveform and reference waveform that whether the distance between southbound node and ascending node immediately after is more than the first predetermined threshold, if more than, assert touching object physical presence。According to one embodiment of present invention, this threshold value can be touched, by single finger, the minimum widith affected on contactor control device；So can reduce the generation that false touch is touched。
As it was previously stated, also include the influence value detecting other direction inductor lines in the method, thus obtaining the number of other directions touching object, the number obtaining object touching contactor control device further is the maximum that all directions touch in the number of object。
Fig. 4 is the oscillogram that X or Y either direction produces when there being object to touch。The 400 inductive waveform figure drawn for the scanning line of induction, 401 is the reference waveform preset。Tetra-points of A, B, C, D are the intersection point of inductive waveform 400 and reference waveform 401；Wherein A, C are rising point, and B, D are drop point。The identification of these four points can determine whether the number of touching object。Judge that whether the distance between A, B or the distance between C, D are more than the first predetermined threshold at 2, if more than, assert touching object physical presence。
Wherein, reference waveform 401 is the X line of induction on contactor control device or the Y line of induction, the sensing amount of its touch position touched by object, carries out measuring, a kind of reference settings value that mean deviation is tried to achieve according to assessment or term of reference。According to one embodiment of present invention, above-mentioned contactor control device can be capacitive touch device。Wherein differ and be decided to be vertical in the direction of X, Y line of induction, can be arbitrarily angled, it is necessary to determine according to line of induction shape in actual device。
Fig. 5 is the inductive waveform schematic diagram with reference waveform of the second embodiment of the present invention。As shown in Figure 5, when contactor control device there being object touch, obtain waveform as shown in Figure 5 owing to the processing method of detection method and detected value is different；Wherein 501 is the reference waveform preset, and 500 is the inductive waveform figure that the scanning line of induction draws。A ', B ', C ', four points of D ' are the intersection point of reference line 501 and inductive waveform 500；Wherein A ', C ' are drop point, and B ', D ' are rising point；The identification of these four points can determine whether the number of touching object；Its concrete operation method is similar to above, repeats no more herein。Wherein, this embodiment has been merely given as waveform during two object touchings, and the method can be used for touching situation during object more than two。
The inductive waveform of Fig. 6 third embodiment of the invention and the schematic diagram of reference waveform, wherein inductive waveform is the waveform received by the receptor of surface acoustic wave touch device。This device is furnished with the transmitting transducer launching sound wave and receives the reception transducer of sound wave。The signal of telecommunication that during work, touching control panel controller is sent here by transmitting transducer converts sound wave energy to, by, after the hyperacoustic reflection strip reflection of reflecting surface that contact panel four limit is carved, being converted to the signal of telecommunication by receiving after transducer receives。When there being object touching screen, acoustic wave segment energy is absorbed, and then changes reception signal, and the controller in this contactor control device processes further, thus obtaining required touch sensing waveform。
In figure 6,601 receive, for certain time period, the waveshape signal that the acoustic wave energy that receives of transducer is superimposed as, and this waveform is the waveform when there being object touch, there are two breach 602 and 603 of decaying in waveform；This decay breach 602 is that sound wave occurs what decay caused owing to, when object is close or touches, the acoustic wave segment energy of touched position is absorbed。600 is preset reference waveform。Be may determine that M, E are the intersection point of inductive waveform 601 and reference waveform in downward trend by said method, N, F are the intersection point of inductive waveform 601 and reference waveform in ascendant trend, the number of the number and downward trend waveform that can obtain ascendant trend waveform is twice, and obtains having two objects to touch this surface acoustic wave touch device。The present embodiment has been merely given as situation during two object touchings, but is not limited to two objects。
According to the number of the object of touching on contactor control device that detection in step B obtains, perform step C and step D: whether judgment object number is multiple, when number of objects is multiple, determines whether whether multiple object performs rotary motion。
Around induction region clockwise rotation, step D is illustrated for two objects (such as finger) below in conjunction with Fig. 7 and Fig. 8。It should be noted that; after those of ordinary skill has read the following technical proposals of the present invention; obviously easily such as two clockwise rotary motions of Objects around A induction region can be applied to multiple Objects around A induction region and carry out rotating clockwise or counter-clockwise the situation of motion; thus protection scope of the present invention is defined by the appended claims; two objects are merely for the purpose of example herein, rather than in order to limit the scope of the invention。
Fig. 7 shows that two objects (such as finger) make the schematic diagram of clockwise rotation around induction region。In Fig. 7, F1 and F2 is two touching objects。First, being detected in certain time by hardware induction installation, the rotation process that two objects (such as finger) carry out in the induction region of device, thus carrying out information gathering。Hardware induction installation can be such as touch pad, notebook computer contact panel, touch panel of cell phone or tangible television set etc.。
Gather positional information during this two object of which movement。If the coordinate of touching object F1 is (xa, ya), the coordinate of touching object F2 is (xb, yb), according to formula D2=(yb-ya)2+(xb-xa)2When judging this two object of which movement not in the same time between two between relative position, i.e. relative position variable quantity between two objects。When the variable quantity of relative position is not less than the second predetermined threshold between two in the same time for these two objects, then can confirm that and move gesture for many objects。
Confirming as after multiple object touches on contactor control device, at least three adjacent position relation according to multiple objects judges whether multiple object performs rotary motion further。
For two touching objects, whether judgment object is performed rotary motion below to illustrate。
Fig. 8 shows that two objects (such as finger) do the equivalent schematic of clockwise rotation around induction region。As shown in Figure 8, calculate described current time positional information and obtain an equivalent coordinate (X0, Y0) and be labeled as the first equivalence coordinate, by the equivalent coordinate (X in the first moment before current time1, Y1) it is labeled as the second equivalence coordinate, by the equivalent coordinate (X in the second moment before the first moment2, Y2) it is labeled as third equivalent coordinate。Wherein, the first equivalence coordinate, the second equivalence coordinate and third equivalent coordinate can be the center-of-mass coordinates of these two objects, can also be the equivalent coordinates of the position coordinates of these two one of them objects of object or other form calculus。Thus, term " equivalence coordinate " refers to the effective coordinate that can equally replace object position on described induction region, and namely described equivalent merit is interpreted as broadest coordinate, but not is limited thereto the example that place is meant。Then, according to the coordinate difference between first and second equivalence coordinate, produce the first slope amount K1, the slope amount K2 that second and third equivalence coordinate obtains is labeled as the second slope。
Wherein, K1=(Y0-Y1)/(X0-X1), K2=(Y1-Y2)/(X1-X2)。The tiltangleθ of its correspondence can be respectively obtained by following arctan function relational expression1And θ2Value:
θ1=arctan [(Y0-Y1)/(X0-X1)]；And
θ2=arctan [(Y1-Y2)/(X1-X2)]。
And if only if X1=X2And Y1> Y2Time, the inclination angle of its correspondence is 90 degree；X1=X2And Y1< Y2Time, the inclination angle of its correspondence is-90 degree, and has θ=θ1-θ 2。As shown in 8 figure, θ is the angle that these many objects rotate, and this differential seat angle θ can just as the Spin Control reference quantity of such as software object。As shown in Figure 8, as θ > 0, represent that these many objects rotate counterclockwise；As θ < 0, represent that these many objects turn clockwise。
Certainly it will be appreciated by those skilled in the art that time, when two objects (such as finger) do counter-clockwise rotary motion around induction region, it would however also be possible to employ spinning movement is identified by the recognition methods of the multi-point rotating movement of the above embodiment of the present invention。
Below in conjunction with Fig. 9 and Figure 10, the number of many objects and the identification of touch action are illustrated。
As it is shown in figure 9, start to perform from step 91, then perform step 92。
Step 92: the inductive waveform that detection is caused by object；
Step 93: judge ascendant trend waveform and/or the downward trend waveform of inductive waveform according to reference waveform, and respectively obtain the number of rising and/or downward trend waveform；
Step 94: the maximum number according to ascendant trend waveform and/or downward trend waveform, it is determined that the number of object；
Step 95: judge that whether the number of the object obtained in step 94 is more than or equal to two, when the number of object is more than or equal to two, then confirms as many object event, performs step 96, otherwise, performs step 97；
Step 96: whether judgment object moves, when object of which movement, then performs step 98, otherwise, performs step 97；
Step 97: if object does not move, the number according only to object judges to be operated, and performs step 99, terminates this flow process；
Step 98: if object moves, then carry out judging operation according to the number of object and motion, then performs step 99, terminates this flow process。
Above-mentioned steps 98 is described in detail below in conjunction with Figure 10。As shown in Figure 10, comprise the steps: according to the number of object and motion determination operation
Start to perform from step 981。Then, step 982 is performed；
Step 982: when judging many object of which movement, whether relative position variable quantity between any two is less than the second predetermined threshold, when the variable quantity of relative position is less than the second predetermined threshold between two, then perform step 983, otherwise, performing step 985, wherein the second predetermined threshold can set according to the sensitivity of contactor control device；
Step 983: process the positional information of these many object of which movement and produce control signal, such as rotation control signal, resizing control signal etc.。
Step 984: this contactor control device performs to control operation accordingly according to above-mentioned control signal, for instance the control of the behavior expression of control software design object, the anglec of rotation, dialing etc.；And
Step 985: flow process terminates。
Positional information in one embodiment of the invention, in step 983, according to many object of which movement, it is possible to identify that many objects perform spinning movement by one of following three kinds of modes。
1) the difference magnitude relationship according to the slope between the slope between the first equivalence coordinate and the second equivalence coordinate and the second equivalence coordinate and third equivalent coordinate, it is judged that multiple objects perform counter-clockwise rotary motion or clockwise rotation。
2) the angular dimension relation according to the line between the line of the first equivalence coordinate and the second equivalence coordinate and the second equivalence coordinate and third equivalent coordinate, it is judged that multiple objects perform counter-clockwise rotary motion or clockwise rotation。
3) the physical coordinates relation according to the first equivalence coordinate, the second equivalence coordinate and third equivalent coordinate, it is judged that multiple objects perform counter-clockwise rotary motion or clockwise rotation。
Below in conjunction with Figure 11 and Figure 12, the difference magnitude relationship utilizing equivalence coordinate slope of first kind of way being judged, the flow process of the spinning movement of many objects illustrates。
As shown in figure 11, flow process starts to perform from step 101；
Step 102: gather the positional information of the many objects of current time, processes this positional information and obtains the first equivalence coordinate (X of current time0, Y0)；
Step 103: by the equivalent coordinate (X in the first moment before current time1, Y1) it is labeled as the second equivalence coordinate, by the equivalent coordinate (X in the second moment before the first moment2, Y2) it is labeled as third equivalent coordinate；
Step 104: according to the first equivalence coordinate (X0, Y0), second equivalence coordinate (X1, Y1) between coordinate difference, produce the first slope amount K1；
Step 105: according to the second equivalence coordinate (X1, Y1), third equivalent coordinate (X2, Y2) between coordinate difference, produce the second slope amount K2；
Step 106: judge the first slope amount K1With the second slope amount K2Difference whether be 0, namely judge the first slope amount K1With the second slope amount K2Whether equal, work as K1=K2Time, then perform step 102, again read off another group location information data；Otherwise, according to the spinning movement of the many objects of following conditional judgment for turning clockwise or rotating counterclockwise:
1) X is worked as0> X1> X2Time, 0 < K1< K2Or K1< K2< 0 or K2> 0 > K1Then identify that many objects perform to turn clockwise action；0 < K2< K1Or K2< K1< 0 or K2< 0 < K1Then identify that many objects perform spinning movement counterclockwise；
2) X is worked as0< X1< X2Time, 0 > K2> K1Or K2> K1> 0 or K2> 0 > K1Then identify that many objects perform to turn clockwise action；K1> K2> 0 or 0 > K1> K2Or K2< 0 < K1Then identify that many objects perform spinning movement counterclockwise；
3) X is worked as0< X1> X2And K1> 0 > K2Time, or work as X0> X1< X2And K2< 0 < K1Time then identify that many objects perform to turn clockwise action；Work as X0< X1> X2And K1< 0 < K2Time, or work as X0> X1< X2And K2> 0 > K1Time then identify many objects perform spinning movement counterclockwise；
4) X is worked as0=X1Or X1=X2Time, X0< X1And Y0< Y1< Y2, or X1> X2And Y0< Y1< Y2, or X0> X1And Y0> Y1> Y2, or X1< X2And Y0> Y1> Y2, then identify that many objects perform to turn clockwise action；X0< X1And Y0> Y1> Y2, or X1> X2And Y0> Y1> Y2, or X0> X1And Y0< Y1< Y2, or X1< X2And Y0< Y1< Y2, then identify that many objects perform spinning movement counterclockwise；
Step 107: the spinning movement according to identifying the many objects obtained in step 106 exports corresponding control signal to contactor control device；
In step 108: flow process terminates。
Figure 12 (a) illustrates that two objects perform to turn clockwise the schematic diagram of action around induction region on contactor control device, and Figure 12 (b) illustrates that two touching objects perform the schematic diagram of selection action counterclockwise on contactor control device around induction region。Wherein, F1 and the F2 in Figure 12 (a) and Figure 12 (b) is two touching objects。
Below in conjunction with Figure 13 and Figure 14, the magnitude relationship utilizing equivalence coordinate angle of the second way being judged, the flow process of the spinning movement of many objects illustrates。
As shown in figure 13, flow process starts to perform from step 111；
Step 112: gather the positional information of the many objects of current time, processes this positional information and obtains the first equivalence coordinate (X of current time0, Y0)；
Step 113: by the equivalent coordinate (X in the first moment before current time1, Y1) it is labeled as the second equivalence coordinate, by the equivalent coordinate (X in the second moment before the first moment2, Y2) it is labeled as third equivalent coordinate；
Step 114: according to the first equivalence coordinate (X0, Y0), second equivalence coordinate (X1, Y1) between coordinate difference, produce the first slope amount K1；
Step 115: according to the second equivalence coordinate (X1, Y1), third equivalent coordinate (X2, Y2) between coordinate difference, produce the second slope amount K2；
Step 116: according to the first slope amount K obtained in step 1151With the second slope amount K2Utilize arctan function relational expression can respectively obtain the tiltangleθ of its correspondence1And θ2Value:
θ1=arctan [(Y0-Y1)/(X0-X1)]；
θ2=arctan [(Y1-Y2)/(X1-X2)]。
Shown in Fig. 8, and if only if X1=X2And Y1> Y2Time, the inclination angle of its correspondence is 90 degree；X1=X2And Y1< Y2Time, the inclination angle of its correspondence is-90 degree；
Step 117: judge θ1-θ2Whether it is 0, namely judges θ1And θ2Whether equal, work as θ1=θ2Time, then perform step 112, again read off another group location information data；Otherwise according to the spinning movement of the many objects of following conditional judgment for turning clockwise or rotating counterclockwise:
1) as θ=θ1-θ2During < 0, then identify that many objects perform to turn clockwise action；
2) as θ=θ1-θ2During > 0, then identify that many objects perform spinning movement counterclockwise。
Step 118: the spinning movement according to identifying the many objects obtained in step 117 exports corresponding control signal to contactor control device；
Step 119: flow process terminates。
Figure 14 (a) illustrates that two objects perform to turn clockwise the schematic diagram of action (θ < 0) around induction region on contactor control device, and Figure 14 (b) illustrates that two touching objects perform to select counterclockwise the schematic diagram of action (θ > 0) on contactor control device around induction region。Wherein, F1 and the F2 in Figure 14 (a) and Figure 12 (b) is two touching objects。
In one embodiment of the invention, identify that many objects perform spinning movement also by following step on contactor control device:
(1) the first adjacent equivalence coordinate of the front and back of multiple object, the second equivalence coordinate and third equivalent coordinate are obtained, wherein, the first equivalence coordinate (X0, Y0) for the positional information of the many objects of current time, the second equivalence coordinate (X1, Y1) for the equivalent coordinate (X in the first moment before current time1, Y1), third equivalent coordinate (X2, Y2) be the first moment before the equivalent coordinate (X in the second moment2, Y2)；
(2) the physical coordinates relation according to the first equivalence coordinate, the second equivalence coordinate and third equivalent coordinate, it is judged that multiple objects perform counter-clockwise rotary motion or clockwise rotation and rotational steps thereof。
In one embodiment of the invention, the first equivalence coordinate, the second equivalence coordinate and third equivalent coordinate are the center-of-mass coordinate in multiple object or the physical coordinates of at least one。
The spinning movement that multiple object performs is may identify which according to the recognition methods that above-described embodiment provides, then step 984 is performed, contactor control device generates the control signal corresponding with above-mentioned spinning movement, and perform to control operation accordingly on contactor control device according to this control signal, for instance the behavior expression of control software object within contactor control device。Wherein, the behavior expression of software object is response many objects movement locus on the induction region of contactor control device。
Perform to control operation accordingly on contactor control device according to this control signal, for instance: when detecting that multiple object performs anticlockwise behavior at contactor control device, then contactor control device generates anticlockwise signal, and control software design object performs anticlockwise behavior。For example, contactor control device according to the anticlockwise signal generated control the imaged image that shows of contactor control device to anticlockwise；Contactor control device adjusts the audio frequency parameter of contactor control device according to the anticlockwise signal generated, as reduced the volume of (or increasing) contactor control device。
Correspondingly, when detecting that multiple object performs right rotation behavior at contactor control device, then contactor control device generates right rotation signal, and control software design object performs right rotation behavior；When detecting that multiple object performs inner-spiral type circling behavior at contactor control device, then contactor control device generates internal coiling rotating signal, and control software design object performs inner-spiral type circling behavior；When detecting that multiple object performs external spiral formula circling behavior at contactor control device, then contactor control device generates external spiral rotating signal, and control software design object performs external spiral formula and rotates。
By the recognition methods of the multi-point rotating movement of the present invention, according to obtaining produced inductive waveform along at least one direction in the touch surface of contactor control device, it is possible to identify the number of object exactly。Further, when detection has multiple object to touch on contactor control device, it is possible to identify the rotary motion of multiple object further exactly, and perform the control operation corresponding with rotary motion on contactor control device。
The rotation gesture of object on the recognition methods identification contactor control device of the multi-point rotating movement of the present invention, algorithm is simple, and program is succinct, and major part uses addition and subtraction to carry out computing, decrease the use of multiplication and division, thus reaching instruction compaction, the feature that extensibility is good。The recognition methods of the multi-point rotating movement of the present invention is low to the processor speed of service and program's memory space size requirements in corresponding embedded system。System cost can be greatly lowered under the premise meeting embedded system function, performance, make the miniaturization of contactor control device that user operation can be allowed to get up simultaneously and more enrich and human nature, meet user and pursue the fashion of multi-point gestures operation。
Below with reference to Figure 15 to Figure 17, the apparatus 150 of multi-point rotating movement for contactor control device according to embodiments of the present invention is described。
As shown in figure 15, the apparatus 150 for the multi-point rotating movement of contactor control device according to embodiments of the present invention includes detection module 151, and described detection module 151 is touched caused inductive waveform by object at least one angle detecting contactor control device；Touching number of objects determines that module 152, described touching number of objects determine that module 152 determines the number of objects of touching contactor control device according to the inductive waveform of detection；Object rotary motion determine module 153, described object rotary motion determine module 153 touch number of objects determine module identify number of objects be multiple time, for judging whether multiple object performs rotary motion；With signal generator module 154, in object rotary motion, described signal generator module 154 determines that module determines that multiple object generates control signal when performing rotary motion, and according to control signal executive control operation on described contactor control device。
Before being additionally included in the initial influence value of inductive waveform in detection module 151 and increase the first initial influence value and the second initial influence value respectively after final influence value, this first initial influence value and the second initial influence value can be arranged according to the sensing direction of described inductive waveform。Wherein, the sensing direction of described inductive waveform is the variable-quantity directional caused by object in an embodiment of the present invention。Such as in Fig. 4, the sensing direction of inductive waveform is upwards, and the sensing direction of inductive waveform is downward in Figure 5。In an embodiment of the present invention, if the sensing of inductive waveform is upwardly directed, then the first initial influence value should be less than reference waveform value, whereas if the sensing of inductive waveform is downwardly, then the first initial influence value should be greater than reference waveform value。In an embodiment of the present invention, if the sensing of inductive waveform is upwardly directed, then the second initial influence value should be less than reference waveform value, whereas if the sensing of inductive waveform is downwardly, then the second initial influence value should be greater than reference waveform value。
Detection module 151 includes transmitting transducer, and sound wave launched by described transmitting transducer；With reception transducer, described reception transducer receives the sound wave from transmitting transducer, and contactor control device, at the sound wave of touched rear absorption portion, receives transducer and produces actual induction waveform according to the sound wave after absorbing。Specifically, during work, transmitting transducer converts the signal of telecommunication that the touching control panel controller of contactor control device is sent here to sound wave energy, by, after the hyperacoustic reflection strip reflection of reflecting surface that contact panel four limit is carved, being converted to the signal of telecommunication by receiving after transducer receives。When there being object touching screen, acoustic wave segment energy is absorbed, thus changing reception signal。The signal controller in this contactor control device that receives after change processes further, thus obtaining required actual induction waveform。
In one embodiment of the invention, detection module 151 can sonic sensor, electric signal sensor or light wave sensor, such that it is able to accordingly by obtaining inductive waveform acoustically, electrically or optically。
Module 152 is determined below with reference to Figure 16 touching number of objects described according to embodiments of the present invention。
As shown in figure 16, touching number of objects determines that module 152 includes computing module 1521, each influence value in inductive waveform and reference waveform value are compared by described computing module 1521, to judge whether inductive waveform includes ascendant trend waveform and/or downward trend waveform, and determine the number of the object of touching contactor control device according to the number of the described inductive waveform including ascendant trend waveform and/or downward trend waveform；With judge module 1522, described judge module judges whether the number of the object of touching contactor control device is multiple and exports the number of the object touching contactor control device。
In one embodiment of the invention, computing module 1521 can also include comparing unit (not shown), for inductive waveform and reference waveform value are compared, if the current influence value of inductive waveform is more than the previous influence value of reference waveform value and inductive waveform less than reference waveform value, obtaining this place's inductive waveform is ascendant trend waveform；If the current influence value of inductive waveform is less than the previous influence value of reference waveform value and inductive waveform more than reference waveform value, obtaining this place's inductive waveform is downward trend waveform。Thus can obtain the number of rising and/or downward trend waveform in inductive waveform further。
Being compared with the first initial influence value preset by Article 1 line of induction influence value in computing module 1521, the last item line of induction influence value will compare with the default second initial influence value。The influence value being sequentially carried out adjacent two lines of induction so it is possible to prevent to carry out when judging to compare, occurring that the influence value of Article 1 and/or the last item line of induction does not have the situation that corresponding comparison other compares judgement。So obtain the number of times that rises and the number of times of decline is equal, it is possible to using number as touching object of the number that rises, or using number as touching object of the number that declines。
Computing module 1521 can be also used for whether including the inductive waveform of ascendant trend waveform and/or the downward trend waveform spacing with two intersection points of described reference waveform described in judgement more than the first predetermined threshold, and when the distance judged between said two intersection point is more than the first predetermined threshold, using the described inductive waveform including ascendant trend waveform and/or downward trend waveform as actual induction waveform, determine the number of the object touching described contactor control device with the number according to actual induction waveform。Thus, when the local of the inductive waveform that object is touched is on reference waveform, judge that the distance between inductive waveform and reference waveform ascending node and lower southbound node immediately after just can determine whether this touching object physical presence more than the first predetermined threshold, if the local of the inductive waveform of object touching is under reference waveform, then judge under inductive waveform and reference waveform that whether the distance between southbound node and ascending node immediately after is more than the first predetermined threshold, if more than, assert touching object physical presence。As it was previously stated, this threshold value is touched, by single finger, the minimum widith affected on contactor control device, the generation that false touch is touched so can be reduced。The line of induction influence value of all directions on contactor control device can also be carried out detection union by this computing module 1521, finally gives the maximum that the number touching object on contactor control device is all directions touching physical quantities。
Specifically, described detection module 151 can detect the first inductive waveform that object touching is caused along a first direction；And detect, along second direction, the second inductive waveform that object touching is caused。And described first direction and described second direction have predetermined angle。Preferably, described angle is right angle。Then, described computing module 1521 can determine the number of touching object according to the maximum number of ascendant trend waveform and/or downward trend waveform in described first and second inductive waveforms。
Module 153 is determined below with reference to Figure 17 object rotary motion described according to embodiments of the present invention。
As shown in figure 17, object rotary motion determines that module 153 includes relative position variable quantity and determines that module 1531, described relative position variable quantity determine that module 1531 detects multiple object relative position variable quantity each other within the predetermined time；With rotary motion judge module 1532, according at least three adjacent position relation of multiple objects, described rotary motion judge module 1532 is when relative position variable quantity is less than the second predetermined threshold, judge whether the plurality of object performs rotary motion。
According to relative position variable quantity, rotary motion judge module 1532 determines that module 1531 obtains the relative position variable quantity of multiple object and judges whether multiple object performs rotary motion and perform which kind of spinning movement。
By one of following three kinds of modes, rotary motion judge module 1532 can identify that many objects perform spinning movement。
1) the rotary motion judge module 1532 difference magnitude relationship according to the slope between the slope between the first equivalence coordinate and the second equivalence coordinate and the second equivalence coordinate and third equivalent coordinate, it is judged that multiple objects perform counter-clockwise rotary motion or clockwise rotation。
2) the rotary motion judge module 1532 angular dimension relation according to the line between line and the second equivalence coordinate and the third equivalent coordinate of the first equivalence coordinate and the second equivalence coordinate, it is judged that multiple objects perform counter-clockwise rotary motion or clockwise rotation。
3) the rotary motion judge module 1532 physical coordinates relation according to the first equivalence coordinate, the second equivalence coordinate and third equivalent coordinate, it is judged that multiple objects perform counter-clockwise rotary motion or clockwise rotation and rotational steps thereof。
Rotary motion judge module 1532, according to the positional information gathering the many objects of current time, obtains the first equivalence coordinate (X of current time0, Y0), the second equivalence coordinate (X in the first moment before current time1, Y1) and the first moment before the third equivalent coordinate (X in the second moment2, Y2)。And according to the first equivalence coordinate (X0, Y0), second equivalence coordinate (X1, Y1) between coordinate difference, produce the first slope amount K1, and according to the second equivalence coordinate (X1, Y1), third equivalent coordinate (X2, Y2) between coordinate difference, produce the second slope amount K2。Judge the first slope amount K1With the second slope amount K2Difference whether be 0。Work as K1=K2Time, then read another group location information data；Otherwise, according to the spinning movement of the many objects of following conditional judgment for turning clockwise or rotating counterclockwise:
1) X is worked as0> X1> X2Time, 0 < K1< K2Or K1< K2< 0 or K2> 0 > K1Then rotary motion judge module 1532 judges that many objects perform to turn clockwise action；0 < K2< K1Or K2< K1< 0 or K2< 0 < K1Then rotary motion judge module 1532 judges that many objects perform spinning movement counterclockwise；
2) as X0 < X1< X2Time, 0 > K2> K1Or K2> K1> 0 or K2> 0 > K1Then rotary motion judge module 1532 judges that many objects perform to turn clockwise action；K1> K2> 0 or 0 > K1> K2Or K2< 0 < K1Then rotary motion judge module 1532 judges that many objects perform spinning movement counterclockwise；
3) X is worked as0< X1> X2And K1> 0 > K2Time, or work as X0> X1< X2And K2< 0 < K1Time then rotary motion judge module 1532 judge that many objects perform to turn clockwise action；Work as X0< X1> X2And K1< 0 < K2Time, or work as X0> X1< X2And K2> 0 > K1Time then rotary motion judge module 1532 judge many objects perform spinning movement counterclockwise；
4) X is worked as0=X1Or X1=X2Time, X0< X1And Y0< Y1< Y2, or X1> X2And Y0< Y1< Y2, or X0> X1And Y0> Y1> Y2, or X1< X2And Y0> Y1> Y2, then rotary motion judge module 1532 judges that many objects perform to turn clockwise action；X0< X1And Y0> Y1> Y2, or X1> X2And Y0> Y1> Y2, or X0> X1And Y0< Y1< Y2, or X1< X2And Y0< Y1< Y2, then rotary motion judge module 1532 judges that many objects perform spinning movement counterclockwise。
Signal generator module 154 judges that according to rotary motion judge module 1532 spinning movement of the many objects obtained exports corresponding control signal to contactor control device, and according to control signal executive control operation on contactor control device。
Rotary motion judge module 1532, according to the positional information gathering the many objects of current time, obtains the first equivalence coordinate (X of current time0, Y0), the second equivalence coordinate (X in the first moment before current time1, Y1) and the first moment before the third equivalent coordinate (X in the second moment2, Y2)。And according to the first equivalence coordinate (X0, Y0), second equivalence coordinate (X1, Y1) between coordinate difference, produce the first slope amount K1, and according to the second equivalence coordinate (X1, Y1), third equivalent coordinate (X2, Y2) between coordinate difference, produce the second slope amount K2。According to the first slope amount K1With the second slope amount K2Utilize arctan function relational expression can respectively obtain its tiltangleθ1And θ2Value:
θ1=arctan [(Y0-Y1)/(X0-X1)]；θ2=arctan [(Y1-Y2)/(X1-X2)]。
Judge θ1-θ2Whether it is 0。Work as θ1=θ2Time, then again read off another group location information data；Otherwise according to the spinning movement of the many objects of following conditional judgment for turning clockwise or rotating counterclockwise:
1) as θ=θ1-θ2During < 0, then identify that many objects perform to turn clockwise action；
2) as θ=θ1-θ2During > 0, then identify that many objects perform spinning movement counterclockwise。
Signal generator module exports corresponding control signal according to the spinning movement judging the many objects obtained in step 117 according to rotary motion judge module 1532 to contactor control device, and according to control signal executive control operation on contactor control device。
In one embodiment of the invention, rotary motion judge module 1532, according to the positional information gathering the many objects of current time, obtains the first equivalence coordinate (X of current time0, Y0), the second equivalence coordinate (X in the first moment before current time1, Y1) and the first moment before the third equivalent coordinate (X in the second moment2, Y2)。And according to the first equivalence coordinate (X0, Y0), second equivalence coordinate (X1, Y1) between coordinate difference, produce the first slope amount K1, and according to the second equivalence coordinate (X1, Y1), third equivalent coordinate (X2, Y2) between coordinate difference, produce the second slope amount K2。Then, the physical coordinates relation according to the first equivalence coordinate, the second equivalence coordinate and third equivalent coordinate, it is judged that multiple objects perform counter-clockwise rotary motion or clockwise rotation。
In one embodiment of the invention, the first equivalence coordinate, the second equivalence coordinate and third equivalent coordinate are the center-of-mass coordinate in multiple object or the physical coordinates of at least one。
Signal generator module 154 judges that according to rotary motion judge module 1532 spinning movement of the many objects obtained exports corresponding control signal to contactor control device, and according to control signal executive control operation on contactor control device。The such as behavior expression of control software object within contactor control device。Wherein, the behavior expression of software object is response many objects movement locus on the induction region of contactor control device。
By the identification device of the multi-point rotating movement for contactor control device of the present invention, according to obtaining produced inductive waveform along at least one direction in the touch surface of contactor control device, it is possible to identify the number of object exactly。Further, when detection has multiple object to touch on contactor control device, it is possible to identify the rotary motion of multiple object further exactly, and perform the control operation corresponding with rotary motion on contactor control device。
Figure 18 shows that the identification device of multi-point rotating movement carries out the schematic diagram of man-machine interaction。
As shown in figure 18, the identification device 150 of multi-point rotating movement carries out the contactor control device with peripheral applications equipment and carries out data acquisition (man-machine communication)。Wherein contactor control device can be the contact panel of portable set, the PDAs (PersonalDigitalAssistantSystem such as touch pad, notebook computer touch screen or handset touch panel, personal digital assistant's system), ATM (AutomaticTellerMachine, ATM), the hardware unit such as GPS (GlobalPositioningSystem, global positioning system) or tangible television set contact panel。
Detection module 151 detects the X-direction line of induction and the Y-direction line of induction。When contactor control device works, each direction line of induction all can produce a sensing amount。Detection module 151 is such as sonic sensor, electric signal sensor or light wave sensor。Touching number of objects determines that module 152, object rotary motion determine that module 153 and signal generator module 154 can be made up of flush bonding processor and program storage etc., read the sensing amount that all lines of induction produce, and according to predetermined Algorithm Analysis, calculate object parameter in rotary moving, thus can realize rotating the detection of gesture。
Signal generator module 154 has I/O interface, such that it is able to realize the bidirectional data communication with peripheral applications equipment, carries out human computer conversation and exchanges。
The rotation gesture of object on the identification device identification contactor control device of the multi-point rotating movement for contactor control device of the present invention, device, method is simple and easy, workable。And, it is achieved the algorithm of identification device of the present invention is simple, and program is succinct, and major part uses addition and subtraction to carry out computing, decreases the use of multiplication and division, thus reaching instruction compaction, and the feature that extensibility is good。The present invention is low to the processor speed of service and program's memory space size requirements in corresponding embedded system。System cost can be greatly lowered under the premise meeting embedded system function, performance, make the miniaturization of contactor control device that user operation can be allowed to get up simultaneously and more enrich and human nature, meet user and pursue the fashion of multi-point gestures operation。
In the description of this specification, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " illustrative examples ", " example ", " concrete example " or " some examples " etc. means in conjunction with this embodiment or example describe are contained at least one embodiment or the example of the present invention。In this manual, the schematic representation of above-mentioned term is not necessarily referring to identical embodiment or example。And, the specific features of description, structure, unit or feature can combine in an appropriate manner in any one or more embodiments or example。
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that: these embodiments can being carried out multiple change, amendment, replacement and modification when without departing from principles of the invention and objective, the scope of the present invention is limited by claim and equivalent thereof。

Claims (23)

1. the recognition methods of a multi-point rotating movement, it is characterised in that comprise the following steps:
A: by the inductive waveform that object touching is caused at least one angle detecting contactor control device；
B: determine the number of objects touching described contactor control device according to the spacing of the ascendant trend waveform of described inductive waveform of detection and two adjoining nodes of the number of downward trend waveform and described inductive waveform and reference waveform；
C: judge whether the described number of objects detected is multiple；
D: if it is determined that the described number of objects of detection is multiple, then judging whether the plurality of object performs rotary motion, wherein, described step D farther includes:
D1: detect the plurality of object relative position variable quantity each other within the predetermined time；
According at least three adjacent position relation of the plurality of object, D2: when described relative position variable quantity is less than the second predetermined threshold, judges whether the plurality of object performs rotary motion；And
E: if the plurality of object performs rotary motion, then described contactor control device generates control signal, and according to the executive control operation on described contactor control device of described control signal。
2. recognition methods according to claim 1, it is characterised in that described step B includes:
B1: compared with reference waveform value by each influence value of described inductive waveform, to judge whether inductive waveform includes ascendant trend waveform and person's downward trend waveform；And
B2: determine the number of object according to the number of ascendant trend waveform and downward trend waveform in inductive waveform。
3. recognition methods according to claim 2, it is characterised in that described step B1 farther includes:
The current influence value of inductive waveform and reference waveform value are compared；
If the current influence value of described inductive waveform is more than described reference waveform value, and the previous influence value of described inductive waveform is less than described reference waveform value, then judge that described inductive waveform includes ascendant trend waveform；
If the current influence value of described inductive waveform is less than described reference waveform value, and the previous influence value of described inductive waveform is more than described reference waveform value, then judge that described inductive waveform includes downward trend waveform。
4. recognition methods according to claim 3, it is characterised in that also include:
Whether the inductive waveform of ascendant trend waveform and the downward trend waveform spacing with two adjoining nodes of described reference waveform is included more than the first predetermined threshold described in judgement；With
If it is determined that the distance between said two intersection point is more than described first predetermined threshold, this section of inductive waveform including ascendant trend waveform and downward trend waveform described in then judging is actual induction waveform, determines the number of the object touching described contactor control device with the number of ascendant trend waveform and/or downward trend waveform according to actual induction waveform。
5. recognition methods according to claim 4, it is characterised in that described step A farther includes:
Detect the first caused inductive waveform along a first direction；And
Along the second inductive waveform that second direction detection is caused。
6. recognition methods according to claim 5, it is characterised in that described step B farther includes:
The number of object is determined according to the maximum number of ascendant trend waveform and downward trend waveform in described first and second inductive waveforms。
7. recognition methods according to claim 1, it is characterised in that described step D2 farther includes:
Obtain the first adjacent equivalence coordinate of the front and back of the plurality of object, the second equivalence coordinate and third equivalent coordinate；And
Difference magnitude relationship according to the slope between described first equivalence coordinate and the second equivalence coordinate and the slope between described second equivalence coordinate and third equivalent coordinate, it is judged that the plurality of object performs counter-clockwise rotary motion or clockwise rotation and rotational steps thereof。
8. recognition methods according to claim 1, it is characterised in that described step D2 farther includes:
Obtain the first adjacent equivalence coordinate of the front and back of the plurality of object, the second equivalence coordinate and third equivalent coordinate；And
The angular dimension relation of the line between line and described second equivalence coordinate and third equivalent coordinate according to described first equivalence coordinate and the second equivalence coordinate, it is judged that the plurality of object performs counter-clockwise rotary motion or clockwise rotation and rotational steps thereof。
9. recognition methods according to claim 1, it is characterised in that described step D2 farther includes:
Obtain the first adjacent equivalence coordinate of the front and back of the plurality of object, the second equivalence coordinate and third equivalent coordinate；And
Physical coordinates relation according to described first equivalence coordinate, described second equivalence coordinate and described third equivalent coordinate, it is judged that the plurality of object performs counter-clockwise rotary motion or clockwise rotation and rotational steps thereof。
10. according to the arbitrary described recognition methods of claim 7-9, it is characterised in that described equivalence coordinate is the center-of-mass coordinate in the plurality of object or the physical coordinates of at least one。
11. recognition methods according to claim 1, it is characterised in that described inductive waveform obtains electrically, acoustically or optically。
12. the identification device for the multi-point rotating movement of contactor control device, it is characterised in that including:
Detection module, described detection module is touched caused inductive waveform by object at least one angle detecting contactor control device；
Touching number of objects determines that module, described touching number of objects determine that module determines, according to the spacing of the ascendant trend waveform of described inductive waveform detected and two adjoining nodes of the number of downward trend waveform and described inductive waveform and reference waveform, the number of objects touching described contactor control device；
Module is determined in object rotary motion, described object rotary motion determine module described touching number of objects determine module identify described number of objects be multiple time, for judging whether the plurality of object performs rotary motion, wherein, described object rotary motion determines that module includes:
Relative position variable quantity determines that module, described relative position variable quantity determine that module detects the plurality of object relative position variable quantity each other within the predetermined time；
Rotary motion judge module, according at least three adjacent position relation of the plurality of object, described rotary motion judge module is when described relative position variable quantity is less than the second predetermined threshold, judge whether the plurality of object performs rotary motion；And
Signal generator module, in described object rotary motion, described signal generator module determines that module determines that the plurality of object generates control signal when performing rotary motion, and according to the executive control operation on described contactor control device of described control signal。
13. identification device according to claim 12, it is characterised in that described touching number of objects determines that module farther includes:
Computing module, each influence value in described inductive waveform and reference waveform value are compared by described computing module, to judge whether inductive waveform includes ascendant trend waveform and downward trend waveform, and determine the number of the object touching described contactor control device according to the number of the described inductive waveform including ascendant trend waveform and downward trend waveform；With
Judge module, described judge module judges whether the number touching the object of described contactor control device is multiple and exports the number of the object touching described contactor control device。
14. identification device according to claim 13, it is characterized in that, described computing module is additionally operable to described in judgement whether include the inductive waveform of ascendant trend waveform and the downward trend waveform spacing with two intersection points of described reference waveform more than the first predetermined threshold, and when the distance judged between said two intersection point is more than the first predetermined threshold, using the described inductive waveform including ascendant trend waveform and downward trend waveform as actual induction waveform, determine the number of the object touching described contactor control device with the number according to actual induction waveform。
15. identification device according to claim 14, it is characterised in that described detection module is by optically, acoustically or electrically obtaining described inductive waveform。
16. identification device according to claim 12, it is characterised in that described detection module includes:
Transmitting transducer, described transmitting transducer is used for launching sound wave；
Receiving transducer, described reception transducer is for receiving the sound wave that described transmitting transducer is launched, and described contactor control device is at the described sound wave of touched rear absorption portion, and described reception transducer produces actual induction waveform according to the sound wave after absorbing。
17. identify device as claimed in claim 13, it is characterised in that described detection module detects the first inductive waveform that object touching is caused along a first direction；And
The second inductive waveform that object touching is caused is detected along second direction。
18. identify device as claimed in claim 17, it is characterised in that described computing module determines the number of touching object according to ascendant trend waveform the maximum number of in described first and second inductive waveforms and downward trend waveform。
19. identify device as claimed in claim 13, it is characterised in that described computing module farther includes:
Comparing unit, the current influence value of inductive waveform and reference waveform value are compared by described comparing unit；If the current influence value of described inductive waveform is more than described reference waveform value, and the previous influence value of described inductive waveform is less than described reference waveform value, then judge that described inductive waveform includes ascendant trend waveform；If the current influence value of described inductive waveform is less than described reference waveform value, and the previous influence value of described inductive waveform is more than described reference waveform value, then judge that described inductive waveform includes downward trend waveform。
20. identify device as claimed in claim 12, it is characterised in that described rotary motion judge module obtains the first adjacent equivalence coordinate of the front and back of the plurality of object, the second equivalence coordinate and third equivalent coordinate；And the difference magnitude relationship according to the slope between described first equivalence coordinate and the second equivalence coordinate and the slope between described second equivalence coordinate and third equivalent coordinate, it is judged that the plurality of object performs counter-clockwise rotary motion or clockwise rotation。
21. identify device as claimed in claim 12, it is characterised in that described rotary motion judge module obtains the first adjacent equivalence coordinate of the front and back of the plurality of object, the second equivalence coordinate and third equivalent coordinate；And the angular dimension relation according to the line between line and described second equivalence coordinate and the third equivalent coordinate of described first equivalence coordinate and the second equivalence coordinate, it is judged that the plurality of object performs counter-clockwise rotary motion or clockwise rotation。
22. identify device as claimed in claim 12, it is characterised in that described rotary motion judge module obtains the first adjacent equivalence coordinate of the front and back of the plurality of object, the second equivalence coordinate and third equivalent coordinate；And the physical coordinates relation according to described first equivalence coordinate, described second equivalence coordinate and described third equivalent coordinate, it is judged that the plurality of object performs counter-clockwise rotary motion or clockwise rotation。
23. the identification device as described in arbitrary in claim 20-22, it is characterised in that described equivalence coordinate is the center-of-mass coordinate in the plurality of object or the physical coordinates of at least one。
CN201110154394.2A 2011-03-31 2011-06-09 The recognition methods of multi-point rotating movement and device Active CN102736838B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201110154394.2A CN102736838B (en) 2011-03-31 2011-06-09 The recognition methods of multi-point rotating movement and device

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN201110081235 2011-03-31
CN2011100812354 2011-03-31
CN201110081235.4 2011-03-31
CN201110154394.2A CN102736838B (en) 2011-03-31 2011-06-09 The recognition methods of multi-point rotating movement and device

Publications (2)

Publication Number Publication Date
CN102736838A CN102736838A (en) 2012-10-17
CN102736838B true CN102736838B (en) 2016-06-22

Family

ID=46882776

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201110154394.2A Active CN102736838B (en) 2011-03-31 2011-06-09 The recognition methods of multi-point rotating movement and device

Country Status (4)

Country Link
US (1) US20120249471A1 (en)
CN (1) CN102736838B (en)
TW (2) TWM434260U (en)
WO (1) WO2012129975A1 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102736771B (en) * 2011-03-31 2016-06-22 比亚迪股份有限公司 The recognition methods of multi-point rotating movement and device
US9465500B2 (en) * 2012-04-21 2016-10-11 Freescale Semicondcutor, Inc. Two-touch gesture detection on a four-wire resistive touchscreen
WO2014183098A2 (en) 2013-05-09 2014-11-13 Amazon Technologies, Inc. Mobile device interfaces
CN104714746B (en) * 2013-12-16 2018-06-01 联想(北京)有限公司 A kind of information processing method and electronic equipment
CN103744432B (en) * 2014-01-20 2016-08-17 联想(北京)有限公司 A kind of method for controlling rotation and electronic equipment
US20150343310A1 (en) * 2014-05-28 2015-12-03 King.Com Limited Apparatus and methods for computer implemented game
TWI547847B (en) * 2014-07-24 2016-09-01 緯創資通股份有限公司 Method for determining a touch object is touched on a touch operating area and optical touch system thereof
CN104182147A (en) * 2014-08-29 2014-12-03 乐视网信息技术（北京）股份有限公司 Volume adjusting method and device
CN106055258B (en) * 2016-06-01 2019-05-10 努比亚技术有限公司 The method of mobile terminal and identification long-pressing rotation gesture
CN106095307B (en) * 2016-06-01 2019-05-31 努比亚技术有限公司 Rotate gesture identifying device and method
CN106055259B (en) * 2016-06-01 2019-05-31 努比亚技术有限公司 The method of mobile terminal and identification long-pressing rotation gesture
US10990236B2 (en) 2019-02-07 2021-04-27 1004335 Ontario Inc. Methods for two-touch detection with resistive touch sensor and related apparatuses and systems

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101763203A (en) * 2010-01-05 2010-06-30 苏州瀚瑞微电子有限公司 Method for detecting multipoint touch control on touch control screen
CN101840295A (en) * 2010-03-10 2010-09-22 敦泰科技(深圳)有限公司 Multipoint touch detection method of capacitance touch screen
CN101667089B (en) * 2008-09-04 2011-08-17 比亚迪股份有限公司 Method and device for identifying touch gestures
CN101727242B (en) * 2009-12-21 2012-05-30 苏州瀚瑞微电子有限公司 Method for sensing multiclutch on touch panel

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5825352A (en) * 1996-01-04 1998-10-20 Logitech, Inc. Multiple fingers contact sensing method for emulating mouse buttons and mouse operations on a touch sensor pad
US8479122B2 (en) * 2004-07-30 2013-07-02 Apple Inc. Gestures for touch sensitive input devices
US7138983B2 (en) * 2000-01-31 2006-11-21 Canon Kabushiki Kaisha Method and apparatus for detecting and interpreting path of designated position
US7567240B2 (en) * 2005-05-31 2009-07-28 3M Innovative Properties Company Detection of and compensation for stray capacitance in capacitive touch sensors
US20070109280A1 (en) * 2005-11-15 2007-05-17 Tyco Electronics Raychem Gmbh Apparatus and method for reporting tie events in a system that responds to multiple touches
TW200723077A (en) * 2005-12-14 2007-06-16 Elan Microelectronics Corp Movement detection method for multiple objects on a capacitive touchpad
TW200807905A (en) * 2006-07-28 2008-02-01 Elan Microelectronics Corp Control method with touch pad remote controller and the utilized touch pad remote controller
TW200933454A (en) * 2008-01-17 2009-08-01 Sentelic Corp Method of detecting multi-contact on touch panel
US20100177053A2 (en) * 2008-05-09 2010-07-15 Taizo Yasutake Method and apparatus for control of multiple degrees of freedom of a display
US20090322701A1 (en) * 2008-06-30 2009-12-31 Tyco Electronics Corporation Method and apparatus for detecting two simultaneous touches and gestures on a resistive touchscreen
US20090322700A1 (en) * 2008-06-30 2009-12-31 Tyco Electronics Corporation Method and apparatus for detecting two simultaneous touches and gestures on a resistive touchscreen
US20100088595A1 (en) * 2008-10-03 2010-04-08 Chen-Hsiang Ho Method of Tracking Touch Inputs
TW201023018A (en) * 2008-12-12 2010-06-16 Asustek Comp Inc Touch panel with multi-touch function and multi-touch detecting method thereof
US8345019B2 (en) * 2009-02-20 2013-01-01 Elo Touch Solutions, Inc. Method and apparatus for two-finger touch coordinate recognition and rotation gesture recognition
CN101984396A (en) * 2010-10-19 2011-03-09 中兴通讯股份有限公司 Method for automatically identifying rotation gesture and mobile terminal thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101667089B (en) * 2008-09-04 2011-08-17 比亚迪股份有限公司 Method and device for identifying touch gestures
CN101727242B (en) * 2009-12-21 2012-05-30 苏州瀚瑞微电子有限公司 Method for sensing multiclutch on touch panel
CN101763203A (en) * 2010-01-05 2010-06-30 苏州瀚瑞微电子有限公司 Method for detecting multipoint touch control on touch control screen
CN101840295A (en) * 2010-03-10 2010-09-22 敦泰科技(深圳)有限公司 Multipoint touch detection method of capacitance touch screen

Also Published As

Publication number Publication date
CN102736838A (en) 2012-10-17
TWM434260U (en) 2012-07-21
TW201239704A (en) 2012-10-01
WO2012129975A1 (en) 2012-10-04
US20120249471A1 (en) 2012-10-04
TWI467425B (en) 2015-01-01

Similar Documents

Publication Publication Date Title
CN102736838B (en) The recognition methods of multi-point rotating movement and device
CN102736771B (en) The recognition methods of multi-point rotating movement and device
US9678606B2 (en) Method and device for determining a touch gesture
JP6052743B2 (en) Touch panel device and control method of touch panel device
CN102736769B (en) The recognition methodss of multiple spot zoom action and device
KR101785630B1 (en) Automatic derivation of analogous touch gestures from a user-defined gesture
TWI581171B (en) Method and device for identifying multipoint gestures
JP5805890B2 (en) Touch panel system
JP5855771B2 (en) Touch panel system
CN103186234A (en) Control method and electronic equipment
CN102436318B (en) Method and device for recognizing number of objects
TW201020891A (en) Method for executing instructions in a capacitive touch panel

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20200108

Address after: 518119 1 Yanan Road, Kwai Chung street, Dapeng New District, Shenzhen, Guangdong

Patentee after: Shenzhen BYD Microelectronics Co., Ltd.

Address before: BYD 518118 Shenzhen Road, Guangdong province Pingshan New District No. 3009

Patentee before: Biyadi Co., Ltd.

CP01 Change in the name or title of a patent holder
CP01 Change in the name or title of a patent holder

Address after: 518119 No.1 Yan'an Road, Kuiyong street, Dapeng New District, Shenzhen City, Guangdong Province

Patentee after: BYD Semiconductor Co.,Ltd.

Address before: 518119 No.1 Yan'an Road, Kuiyong street, Dapeng New District, Shenzhen City, Guangdong Province

Patentee before: SHENZHEN BYD MICROELECTRONICS Co.,Ltd.